ODOT's Drainage system includes stormwater pipes, culverts, ditches, manholes, stormwater control measures, inlets and outfalls. Publicly available information on the Drainage System can be accessed via TransGIS, an online, GIS program. Note that all information provided in TransGIS is for visualization purposes only and should be field-verified before use in the design process.
Accessing TransGIS
To view publicly available information on a drainage system asset:
- Access TransGIS
- From the "Layer Category" menu on the left, click the drop-down menu for "Drainage" and check the box for the desired layer.
- Click the "Submit" button at the bottom of the menu.
- To view asset information, click the "i" icon on the left side of the screen and select the asset point on the map.
Requesting a DFI Number
All new stormwater control measures for management of stormwater quality and/or quantity must be assigned a drainage facility ID (DFI) number in order to be added to the inventory. To request a DFI number for a facility that will be installed in an upcoming project, or a newly discovered facility, complete the DFI Request Form, located under the Project Design Process Forms on the
Design Resources page. Email the completed form to the
senior stormwater hydraulic engineer. For more details on DFI numbers and the request process, refer to
GE16-02(B) and Chapter 17 of the
Hydraulics Manual.